CVE-2017-7521
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I. Basic Information for CVE-2017-7521
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenVPN 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenVPN是美国OpenVPN公司的一个用于创建虚拟专用网络（VPN）加密通道的软件包，它使用OpenSSL库来加密数据与控制信息，并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 2.4.3之前的版本和2.3.17版本中存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务（内存耗尽）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OpenVPN Technologies, Inc | OpenVPN | before 2.4.3 | - |
II. Public POCs for CVE-2017-7521
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2017-7521
Same Patch Batch · OpenVPN Technologies, Inc · 2017-06-27 · 4 CVEs total
| CVE-2017-7508 | OpenVPN 安全漏洞 | |
| CVE-2017-7520 | OpenVPN 安全漏洞 | |
| CVE-2017-7522 | OpenVPN 安全漏洞 |
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V. Comments for CVE-2017-7521
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